Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 597

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-597 A Mojave CA BKFDCAJAAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734      
661-597 0 Mojave CA   624H ONVOY SPECTRUM, LLC 734   2024-01-05   
661-597 1 Mojave CA   939H COMMIO, LLC 734   2022-11-25   
661-597 2 Mojave CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2023-08-20   
661-597 7 Mojave CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2024-12-15   
661-597 8 Mojave CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 734   2025-10-16   
661-597 9 Mojave CA   6529 T-MOBILE USA, INC. 734   2022-12-09   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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